My 2008 liberty ac compressor is not kicking in. A shop pulled a vaccuum and filled my ac. said ther was no leak .
When it quit working it sprayed out all of the R134. The shop had no way to test anything else. They just said the a/c compressor wasnt kicking in. How can I test the compressor?

If it sprayed all the R134A out when it quit working the compressor is junk.You also need a new reciver/dryer and orifice tube,these must be replaced with a new compressor.

Is there a way to bypass to test engaging the clutch to make sure.